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SigmasTek  |  SKU: BW-11274

Sure-Lites 3902 High Performance Replacement Battery 2.76 lb

18% off
Sale price $22.99 USD Regular price $27.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for enhanced durability
Maintenance-free design saves time and effort
Spill-proof construction ensures safe handling
U.L. recognized and CE certified for quality assurance
Includes 1-year warranty for reliable performance
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

6 Volts | 7 AH

Terminal Type

F1

Replacement Sure-Lites 3902 Battery — Compatible with 3902

Keep your emergency lighting and safety infrastructure protected by replacing old cells with this replacement battery designed for the Sure-Lites 3902 model. As a high-performance battery that meets or exceeds OEM SLA specifications, it delivers dependable energy for critical systems. Factory-fresh and maintenance-free, this long-lasting battery is a straightforward upgrade to restore reliable standby power.

Key Specifications

  • Model Compatibility: Sure-Lites 3902
  • Brand: SigmasTek
  • Battery Type: SLA (Sealed Lead Acid)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Voltage: 6 Volts
  • Capacity: 7 AH
  • Terminal: F1
  • Design: Maintenance-Free
  • Construction: Spill Proof
  • Safety & Compliance: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

This replacement battery’s AGM design ensures consistent performance across charge cycles and provides lower internal resistance for better power delivery. As a long-lasting battery solution, it minimizes the frequency of replacements and reduces lifecycle costs. The sealed, maintenance-free construction eliminates the need for watering and frequent inspections, while the spill-proof case increases safety for indoor and enclosed installations.

Expect reliable operation in a wide variety of settings: emergency lighting units, fire alarm panels, security systems, and medical equipment all benefit from the steady output and fast recharge capability of this unit. It is also well-suited for small UPS systems and emergency power applications where dependable runtime and quick recovery are critical.

Certified by U.L. and CE and shipped brand new, this battery provides assurance of quality and safety. The standard F1 terminal configuration facilitates a smooth swap from the original cell so you can minimize downtime and restore protection quickly.

Don’t wait for a power failure to test your backup systems. Purchase this replacement Sure-Lites 3902 high-performance and long-lasting battery now to guarantee consistent emergency power and enjoy the convenience of a 1 year warranty and full compatibility. Order today.

Technical Specifications

Voltage6 Volts
Amp Hours7 AH
Terminal TypeF1
Length (in.)5.95
Width (in.)1.34
Height (in.)3.7
Weight (lb.)2.76

Product Highlights

  • Brand Replacement : Sure-Lites 3902 Battery
  • Manufacturer: SigmasTek
  • Product Type: Emergency Power
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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